[ Brandon Schaefer ]
* Update the DPI when we setup the view. (LP: #1292268)
* Do not avoid rendering the lockscreen when we have a fullscreen app.
This also removes the old fullscreen + lockscreen fix where we force
painted our selfs on top. (LP: #1291571)

[ Chris Townsend ]
* Add ability to minimize a single window application when clicking on
the Launcher icon of the application. (LP: #733349)